Electrical socket for leaded chip carriers

Abstract

An electrical socket (10) for electrically connecting a leaded chip carrier (24) to a substrate is disclosed. The socket (10) includes a frame-shape base (12) with contacts (14) around the periphery of a central opening. Each contact (14) has a pair of outwardly extending, spaced apart arms (64,72) with one arm (72) having a recess (82) on an inside surface (80). The socket (10) also includes a cover (16) with locking members (18) around the periphery of a central opening. The locking members (18) include cantilever beams (90,92) which enter the space (74) between the contact arms (64,72) to press a lead (28) from the carrier (24) against one arm (64).

I claim: 
     
       1. A chip carrier socket for use with a leaded chip carrier, the chip carrier socket comprising: a base having a chip carrier receiving opening, contacts positioned proximate the chip carrier receiving opening, the contacts have means for electrically engaging circuits on a substrate, arms extend outwardly from the contacts, each contact has a pair of spaced arms, respective arms have a recess provided on the inner surfaces thereof;   a cover with a discrete locking members extending therefrom, the discrete locking members have resilient cantilever beams which extend from the cover toward the base, each locking member has a pair of spaced apart cantilever beams, the cantilever beams are positioned in alignment with the arms of the contacts, respective cantilever beams have heel portions on outside surfaces thereof, the heel portions are configured to have a similar configuration to the recesses of the respective arms of the contacts;   whereby the heel portion of the respective cantilever beams are positioned in, and cooperate with, the recesses of the respective arms to provide a positive lock to insure that the cover is maintained in position on the base, and to insure that the positive electrical connection will be maintained between the chip carrier and the chip carrier socket.   
     
     
       2. A chip carrier socket for use with a leaded chip carrier, the chip carrier socket comprising: a base with a chip carrier receiving opening provided therein, a plurality of contacts are positioned adjacent to the chip carrier receiving opening, the contacts have recesses provided in respective surfaces thereof;   a cover with discrete locking members, the cover is movable with respect to the base from an open first position to a closed second position, the locking members are provided in alignment with the contacts, the locking members have heel portions which are configured to have a similar configuration to the recess of the respective surfaces of the contacts, the heel portions are received in the recesses of the contacts;   whereby as the cover is moved from the first position to the second position, the heels of the locking members will engage the recesses of the contacts to secure the cover in position relative to the base.